<?xml version="1.0" encoding="us-ascii"?>
<!-- Created by Merrill Corporation -->
<!-- Generated by Fujitsu XWand B0126 -->
<!-- Generated by Fujitsu Interstage XWand B0166_M01 -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureCommonEquityDetails" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureCommonEquityDetails" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/BalanceSheet" xlink:type="simple" xlink:href="teg-20120930.xsd#BalanceSheet" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/CashFlows" xlink:type="simple" xlink:href="teg-20120930.xsd#CashFlows" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/StatementOfIncome" xlink:type="simple" xlink:href="teg-20120930.xsd#StatementOfIncome" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/StatementOfComprehensiveIncome" xlink:type="simple" xlink:href="teg-20120930.xsd#StatementOfComprehensiveIncome" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureGuaranteesDetails" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureGuaranteesDetails" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureCommonEquityDetails2" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureCommonEquityDetails2" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureGoodwillAndOtherIntangibleAssetsDetails" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureGoodwillAndOtherIntangibleAssetsDetails" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureLongTermDebtDetails" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureLongTermDebtDetails" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureEmployeeBenefitPlansDetails" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureEmployeeBenefitPlansDetails" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureInvestmentInATCDetails2" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureInvestmentInATCDetails2" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureLongTermDebtDetailsCalc2" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureLongTermDebtDetailsCalc2" />
  <link:roleRef roleURI="http://www.integrysgroup.com/role/DisclosureDiscontinuedOperationsDetails" xlink:type="simple" xlink:href="teg-20120930.xsd#DisclosureDiscontinuedOperationsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureCommonEquityDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CommonStockSharesOutstanding" xlink:to="CommonStockSharesIssued" xlink:title="calculation: CommonStockSharesOutstanding to CommonStockSharesIssued" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesHeldInEmployeeTrustShares" xlink:label="CommonStockSharesHeldInEmployeeTrustShares" xlink:title="CommonStockSharesHeldInEmployeeTrustShares" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CommonStockSharesOutstanding" xlink:to="CommonStockSharesHeldInEmployeeTrustShares" xlink:title="calculation: CommonStockSharesOutstanding to CommonStockSharesHeldInEmployeeTrustShares" use="optional" order="2.0" weight="-1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/BalanceSheet">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AssetsCurrent" xlink:title="calculation: Assets to AssetsCurrent" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="calculation: AssetsCurrent to CashAndCashEquivalentsAtCarryingValue" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MarginDepositAssets" xlink:label="MarginDepositAssets" xlink:title="MarginDepositAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="MarginDepositAssets" xlink:title="calculation: AssetsCurrent to MarginDepositAssets" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="ReceivablesNetCurrent" xlink:title="ReceivablesNetCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="ReceivablesNetCurrent" xlink:title="calculation: AssetsCurrent to ReceivablesNetCurrent" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InventoryNet" xlink:label="InventoryNet" xlink:title="InventoryNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="InventoryNet" xlink:title="calculation: AssetsCurrent to InventoryNet" use="optional" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="RegulatoryAssetsCurrent" xlink:title="RegulatoryAssetsCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="RegulatoryAssetsCurrent" xlink:title="calculation: AssetsCurrent to RegulatoryAssetsCurrent" use="optional" order="6.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsHeldForSaleCurrent" xlink:label="AssetsHeldForSaleCurrent" xlink:title="AssetsHeldForSaleCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="AssetsHeldForSaleCurrent" xlink:title="calculation: AssetsCurrent to AssetsHeldForSaleCurrent" use="optional" order="7.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="DeferredTaxAssetsNetCurrent" xlink:title="DeferredTaxAssetsNetCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="DeferredTaxAssetsNetCurrent" xlink:title="calculation: AssetsCurrent to DeferredTaxAssetsNetCurrent" use="optional" order="8.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PrepaidTaxes" xlink:label="PrepaidTaxes" xlink:title="PrepaidTaxes" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="PrepaidTaxes" xlink:title="calculation: AssetsCurrent to PrepaidTaxes" use="optional" order="9.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="OtherAssetsCurrent" xlink:title="OtherAssetsCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="OtherAssetsCurrent" xlink:title="calculation: AssetsCurrent to OtherAssetsCurrent" use="optional" order="10.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedges" xlink:label="DerivativeInstrumentsAndHedges" xlink:title="DerivativeInstrumentsAndHedges" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="DerivativeInstrumentsAndHedges" xlink:title="calculation: AssetsCurrent to DerivativeInstrumentsAndHedges" use="optional" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="calculation: Assets to PropertyPlantAndEquipmentNet" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="RegulatoryAssetsNoncurrent" xlink:title="RegulatoryAssetsNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="RegulatoryAssetsNoncurrent" xlink:title="calculation: Assets to RegulatoryAssetsNoncurrent" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgesNoncurrent" xlink:label="DerivativeInstrumentsAndHedgesNoncurrent" xlink:title="DerivativeInstrumentsAndHedgesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="DerivativeInstrumentsAndHedgesNoncurrent" xlink:title="calculation: Assets to DerivativeInstrumentsAndHedgesNoncurrent" use="optional" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="EquityMethodInvestments" xlink:title="EquityMethodInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="EquityMethodInvestments" xlink:title="calculation: Assets to EquityMethodInvestments" use="optional" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="Goodwill" xlink:title="calculation: Assets to Goodwill" use="optional" order="6.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="OtherAssetsNoncurrent" xlink:title="OtherAssetsNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="OtherAssetsNoncurrent" xlink:title="calculation: Assets to OtherAssetsNoncurrent" use="optional" order="7.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="LiabilitiesCurrent" xlink:title="calculation: LiabilitiesAndStockholdersEquity to LiabilitiesCurrent" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="ShortTermBorrowings" xlink:title="ShortTermBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="ShortTermBorrowings" xlink:title="calculation: LiabilitiesCurrent to ShortTermBorrowings" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="LongTermDebtCurrent" xlink:title="LongTermDebtCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="LongTermDebtCurrent" xlink:title="calculation: LiabilitiesCurrent to LongTermDebtCurrent" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="AccountsPayableCurrent" xlink:title="AccountsPayableCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccountsPayableCurrent" xlink:title="calculation: LiabilitiesCurrent to AccountsPayableCurrent" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="AccruedIncomeTaxesCurrent" xlink:title="AccruedIncomeTaxesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccruedIncomeTaxesCurrent" xlink:title="calculation: LiabilitiesCurrent to AccruedIncomeTaxesCurrent" use="optional" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="RegulatoryLiabilityCurrent" xlink:title="RegulatoryLiabilityCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="RegulatoryLiabilityCurrent" xlink:title="calculation: LiabilitiesCurrent to RegulatoryLiabilityCurrent" use="optional" order="6.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesOfAssetsHeldForSale" xlink:label="LiabilitiesOfAssetsHeldForSale" xlink:title="LiabilitiesOfAssetsHeldForSale" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="LiabilitiesOfAssetsHeldForSale" xlink:title="calculation: LiabilitiesCurrent to LiabilitiesOfAssetsHeldForSale" use="optional" order="7.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="OtherLiabilitiesCurrent" xlink:title="OtherLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="OtherLiabilitiesCurrent" xlink:title="calculation: LiabilitiesCurrent to OtherLiabilitiesCurrent" use="optional" order="8.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent" xlink:label="DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent" xlink:title="DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent" xlink:title="calculation: LiabilitiesCurrent to DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent" use="optional" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="LiabilitiesNoncurrent" xlink:title="LiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="LiabilitiesNoncurrent" xlink:title="calculation: LiabilitiesAndStockholdersEquity to LiabilitiesNoncurrent" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="LongTermDebtNoncurrent" xlink:title="LongTermDebtNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="LongTermDebtNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to LongTermDebtNoncurrent" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGrossNoncurrent" xlink:label="DeferredTaxLiabilitiesGrossNoncurrent" xlink:title="DeferredTaxLiabilitiesGrossNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="DeferredTaxLiabilitiesGrossNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to DeferredTaxLiabilitiesGrossNoncurrent" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccumulatedDeferredInvestmentTaxCredit" xlink:label="AccumulatedDeferredInvestmentTaxCredit" xlink:title="AccumulatedDeferredInvestmentTaxCredit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="AccumulatedDeferredInvestmentTaxCredit" xlink:title="calculation: LiabilitiesNoncurrent to AccumulatedDeferredInvestmentTaxCredit" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent" xlink:label="RegulatoryLiabilityNoncurrent" xlink:title="RegulatoryLiabilityNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="RegulatoryLiabilityNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to RegulatoryLiabilityNoncurrent" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent" xlink:label="AccruedEnvironmentalLossContingenciesNoncurrent" xlink:title="AccruedEnvironmentalLossContingenciesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="AccruedEnvironmentalLossContingenciesNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to AccruedEnvironmentalLossContingenciesNoncurrent" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:title="PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" order="6.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetRetirementObligationsNoncurrent" xlink:label="AssetRetirementObligationsNoncurrent" xlink:title="AssetRetirementObligationsNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="AssetRetirementObligationsNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to AssetRetirementObligationsNoncurrent" order="8.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="OtherLiabilitiesNoncurrent" xlink:title="OtherLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="OtherLiabilitiesNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to OtherLiabilitiesNoncurrent" order="9.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DerivativeInstrumentsAndHedgesLiabilitiesGrossNoncurrent" xlink:label="DerivativeInstrumentsAndHedgesLiabilitiesGrossNoncurrent" xlink:title="DerivativeInstrumentsAndHedgesLiabilitiesGrossNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesNoncurrent" xlink:to="DerivativeInstrumentsAndHedgesLiabilitiesGrossNoncurrent" xlink:title="calculation: LiabilitiesNoncurrent to DerivativeInstrumentsAndHedgesLiabilitiesGrossNoncurrent" use="optional" order="7.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="StockholdersEquity" xlink:title="calculation: LiabilitiesAndStockholdersEquity to StockholdersEquity" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="CommonStockValue" xlink:title="calculation: StockholdersEquity to CommonStockValue" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="AdditionalPaidInCapitalCommonStock" xlink:title="AdditionalPaidInCapitalCommonStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="AdditionalPaidInCapitalCommonStock" xlink:title="calculation: StockholdersEquity to AdditionalPaidInCapitalCommonStock" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="RetainedEarningsAccumulatedDeficit" xlink:title="calculation: StockholdersEquity to RetainedEarningsAccumulatedDeficit" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="calculation: StockholdersEquity to AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockHeldInTrust" xlink:label="CommonStockHeldInTrust" xlink:title="CommonStockHeldInTrust" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="CommonStockHeldInTrust" xlink:title="calculation: StockholdersEquity to CommonStockHeldInTrust" use="optional" order="5.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="PreferredStockValue" xlink:title="calculation: LiabilitiesAndStockholdersEquity to PreferredStockValue" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MinorityInterest" xlink:label="MinorityInterest" xlink:title="MinorityInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="MinorityInterest" xlink:title="calculation: LiabilitiesAndStockholdersEquity to MinorityInterest" order="5.0" weight="1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/CashFlows">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:title="CashAndCashEquivalentsPeriodIncreaseDecrease" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInContinuingOperations" xlink:label="NetCashProvidedByUsedInContinuingOperations" xlink:title="NetCashProvidedByUsedInContinuingOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInContinuingOperations" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInContinuingOperations" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInContinuingOperations" xlink:to="NetCashProvidedByUsedInOperatingActivities" xlink:title="calculation: NetCashProvidedByUsedInContinuingOperations to NetCashProvidedByUsedInOperatingActivities" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ProfitLoss" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ProfitLoss" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncomeLossFromDiscontinuedOperationsNetOfTax" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="DepreciationDepletionAndAmortization" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to DepreciationDepletionAndAmortization" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_RecoveriesAndRefundsOfRegulatoryAssetsAndLiabilities" xlink:label="RecoveriesAndRefundsOfRegulatoryAssetsAndLiabilities" xlink:title="RecoveriesAndRefundsOfRegulatoryAssetsAndLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="RecoveriesAndRefundsOfRegulatoryAssetsAndLiabilities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to RecoveriesAndRefundsOfRegulatoryAssetsAndLiabilities" use="optional" order="4.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_UnrealizedGainLossOnEnergyContracts" xlink:label="UnrealizedGainLossOnEnergyContracts" xlink:title="UnrealizedGainLossOnEnergyContracts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="UnrealizedGainLossOnEnergyContracts" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to UnrealizedGainLossOnEnergyContracts" use="optional" order="5.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ProvisionForDoubtfulAccounts" use="optional" order="6.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitExpense" xlink:label="PensionAndOtherPostretirementBenefitExpense" xlink:title="PensionAndOtherPostretirementBenefitExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="PensionAndOtherPostretirementBenefitExpense" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to PensionAndOtherPostretirementBenefitExpense" use="optional" order="7.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitContributions" xlink:label="PensionAndOtherPostretirementBenefitContributions" xlink:title="PensionAndOtherPostretirementBenefitContributions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="PensionAndOtherPostretirementBenefitContributions" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to PensionAndOtherPostretirementBenefitContributions" use="optional" order="8.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:label="DeferredIncomeTaxesAndTaxCredits" xlink:title="DeferredIncomeTaxesAndTaxCredits" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="DeferredIncomeTaxesAndTaxCredits" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to DeferredIncomeTaxesAndTaxCredits" use="optional" order="9.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:label="IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:title="IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" use="optional" order="10.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement" xlink:label="OtherOperatingActivitiesCashFlowStatement" xlink:title="OtherOperatingActivitiesCashFlowStatement" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="OtherOperatingActivitiesCashFlowStatement" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to OtherOperatingActivitiesCashFlowStatement" use="optional" order="11.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInMarginDepositsOutstanding" xlink:label="IncreaseDecreaseInMarginDepositsOutstanding" xlink:title="IncreaseDecreaseInMarginDepositsOutstanding" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInMarginDepositsOutstanding" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInMarginDepositsOutstanding" use="optional" order="12.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="IncreaseDecreaseInReceivables" xlink:title="IncreaseDecreaseInReceivables" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInReceivables" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInReceivables" use="optional" order="13.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="IncreaseDecreaseInInventories" xlink:title="IncreaseDecreaseInInventories" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInInventories" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInInventories" use="optional" order="14.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="IncreaseDecreaseInOtherOperatingAssets" xlink:title="IncreaseDecreaseInOtherOperatingAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInOtherOperatingAssets" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInOtherOperatingAssets" use="optional" order="15.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="IncreaseDecreaseInAccountsPayable" xlink:title="IncreaseDecreaseInAccountsPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccountsPayable" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccountsPayable" use="optional" order="16.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="IncreaseDecreaseInOtherOperatingLiabilities" xlink:title="IncreaseDecreaseInOtherOperatingLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInOtherOperatingLiabilities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInOtherOperatingLiabilities" use="optional" order="17.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:title="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInContinuingOperations" xlink:to="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:title="calculation: NetCashProvidedByUsedInContinuingOperations to NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivitiesContinuingOperations to PaymentsToAcquirePropertyPlantAndEquipment" use="optional" order="1.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates" xlink:label="PaymentsToAcquireInterestInSubsidiariesAndAffiliates" xlink:title="PaymentsToAcquireInterestInSubsidiariesAndAffiliates" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="PaymentsToAcquireInterestInSubsidiariesAndAffiliates" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivitiesContinuingOperations to PaymentsToAcquireInterestInSubsidiariesAndAffiliates" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="PaymentsToAcquireBusinessesNetOfCashAcquired" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivitiesContinuingOperations to PaymentsToAcquireBusinessesNetOfCashAcquired" use="optional" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="PaymentsForProceedsFromOtherInvestingActivities" xlink:title="PaymentsForProceedsFromOtherInvestingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="PaymentsForProceedsFromOtherInvestingActivities" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivitiesContinuingOperations to PaymentsForProceedsFromOtherInvestingActivities" use="optional" order="4.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:title="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInContinuingOperations" xlink:to="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:title="calculation: NetCashProvidedByUsedInContinuingOperations to NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess" xlink:label="ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess" xlink:title="ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="RepaymentsOfNotesPayable" xlink:title="RepaymentsOfNotesPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="RepaymentsOfNotesPayable" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to RepaymentsOfNotesPayable" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="ProceedsFromIssuanceOfLongTermDebt" xlink:title="ProceedsFromIssuanceOfLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="ProceedsFromIssuanceOfLongTermDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to ProceedsFromIssuanceOfLongTermDebt" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="RepaymentsOfLongTermDebt" xlink:title="RepaymentsOfLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="RepaymentsOfLongTermDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to RepaymentsOfLongTermDebt" use="optional" order="4.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="ProceedsFromStockOptionsExercised" xlink:title="ProceedsFromStockOptionsExercised" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="ProceedsFromStockOptionsExercised" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to ProceedsFromStockOptionsExercised" use="optional" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:label="PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:title="PaymentsOfDividendsPreferredStockAndPreferenceStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to PaymentsOfDividendsPreferredStockAndPreferenceStock" use="optional" order="7.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="PaymentsOfDividendsCommonStock" xlink:title="PaymentsOfDividendsCommonStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="PaymentsOfDividendsCommonStock" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to PaymentsOfDividendsCommonStock" use="optional" order="8.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_PaymentsFromDerivativeContractsRelatedToDivestiture" xlink:label="PaymentsFromDerivativeContractsRelatedToDivestiture" xlink:title="PaymentsFromDerivativeContractsRelatedToDivestiture" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="PaymentsFromDerivativeContractsRelatedToDivestiture" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to PaymentsFromDerivativeContractsRelatedToDivestiture" use="optional" order="9.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="ProceedsFromPaymentsForOtherFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to ProceedsFromPaymentsForOtherFinancingActivities" use="optional" order="10.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_PaymentForPurchaseOfSharesForIncentiveAndShareBasedCompensationPlans" xlink:label="PaymentForPurchaseOfSharesForIncentiveAndShareBasedCompensationPlans" xlink:title="PaymentForPurchaseOfSharesForIncentiveAndShareBasedCompensationPlans" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="PaymentForPurchaseOfSharesForIncentiveAndShareBasedCompensationPlans" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivitiesContinuingOperations to PaymentForPurchaseOfSharesForIncentiveAndShareBasedCompensationPlans" use="optional" order="6.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:title="CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:label="CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:title="CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:label="CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:title="CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations" use="optional" order="4.0" weight="1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/StatementOfIncome">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ProfitLoss" xlink:to="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: ProfitLoss to IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:title="calculation: IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest to IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="OperatingIncomeLoss" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest to OperatingIncomeLoss" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Revenues" xlink:label="Revenues" xlink:title="Revenues" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="Revenues" xlink:title="calculation: OperatingIncomeLoss to Revenues" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RegulatedOperatingRevenue" xlink:label="RegulatedOperatingRevenue" xlink:title="RegulatedOperatingRevenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Revenues" xlink:to="RegulatedOperatingRevenue" xlink:title="calculation: Revenues to RegulatedOperatingRevenue" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_UnregulatedOperatingRevenue" xlink:label="UnregulatedOperatingRevenue" xlink:title="UnregulatedOperatingRevenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Revenues" xlink:to="UnregulatedOperatingRevenue" xlink:title="calculation: Revenues to UnregulatedOperatingRevenue" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_RegulatedCostOfFuelNaturalGasAndPurchasedPower" xlink:label="RegulatedCostOfFuelNaturalGasAndPurchasedPower" xlink:title="RegulatedCostOfFuelNaturalGasAndPurchasedPower" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="RegulatedCostOfFuelNaturalGasAndPurchasedPower" xlink:title="calculation: OperatingIncomeLoss to RegulatedCostOfFuelNaturalGasAndPurchasedPower" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_NonregulatedCostOfSales" xlink:label="NonregulatedCostOfSales" xlink:title="NonregulatedCostOfSales" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="NonregulatedCostOfSales" xlink:title="calculation: OperatingIncomeLoss to NonregulatedCostOfSales" use="optional" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="OtherCostAndExpenseOperating" xlink:title="OtherCostAndExpenseOperating" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="OtherCostAndExpenseOperating" xlink:title="calculation: OperatingIncomeLoss to OtherCostAndExpenseOperating" use="optional" order="4.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="DepreciationDepletionAndAmortization" xlink:title="calculation: OperatingIncomeLoss to DepreciationDepletionAndAmortization" use="optional" order="5.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TaxesExcludingIncomeAndExciseTaxes" xlink:label="TaxesExcludingIncomeAndExciseTaxes" xlink:title="TaxesExcludingIncomeAndExciseTaxes" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="TaxesExcludingIncomeAndExciseTaxes" xlink:title="calculation: OperatingIncomeLoss to TaxesExcludingIncomeAndExciseTaxes" use="optional" order="6.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="NonoperatingIncomeExpense" xlink:title="NonoperatingIncomeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="NonoperatingIncomeExpense" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest to NonoperatingIncomeExpense" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="IncomeLossFromEquityMethodInvestments" xlink:title="IncomeLossFromEquityMethodInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="IncomeLossFromEquityMethodInvestments" xlink:title="calculation: NonoperatingIncomeExpense to IncomeLossFromEquityMethodInvestments" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="OtherNonoperatingIncomeExpense" xlink:title="OtherNonoperatingIncomeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="OtherNonoperatingIncomeExpense" xlink:title="calculation: NonoperatingIncomeExpense to OtherNonoperatingIncomeExpense" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="InterestExpense" xlink:title="calculation: NonoperatingIncomeExpense to InterestExpense" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="IncomeTaxExpenseBenefit" xlink:title="calculation: IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest to IncomeTaxExpenseBenefit" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ProfitLoss" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="calculation: ProfitLoss to IncomeLossFromDiscontinuedOperationsNetOfTax" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="EarningsPerShareBasic" xlink:title="EarningsPerShareBasic" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="IncomeLossFromContinuingOperationsPerBasicShare" xlink:title="IncomeLossFromContinuingOperationsPerBasicShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareBasic" xlink:to="IncomeLossFromContinuingOperationsPerBasicShare" xlink:title="calculation: EarningsPerShareBasic to IncomeLossFromContinuingOperationsPerBasicShare" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareBasic" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:title="calculation: EarningsPerShareBasic to IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:label="IncomeLossFromContinuingOperationsPerDilutedShare" xlink:title="IncomeLossFromContinuingOperationsPerDilutedShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareDiluted" xlink:to="IncomeLossFromContinuingOperationsPerDilutedShare" xlink:title="calculation: EarningsPerShareDiluted to IncomeLossFromContinuingOperationsPerDilutedShare" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EarningsPerShareDiluted" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:title="calculation: EarningsPerShareDiluted to IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="NetIncomeLossAvailableToCommonStockholdersBasic" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="ProfitLoss" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to ProfitLoss" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DividendsPreferredStockCash" xlink:label="DividendsPreferredStockCash" xlink:title="DividendsPreferredStockCash" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="DividendsPreferredStockCash" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to DividendsPreferredStockCash" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="NetIncomeLossAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to NetIncomeLossAttributableToNoncontrollingInterest" use="optional" order="3.0" weight="-1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/StatementOfComprehensiveIncome">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="ComprehensiveIncomeNetOfTax" xlink:title="ComprehensiveIncomeNetOfTax" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: ComprehensiveIncomeNetOfTax to ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="ProfitLoss" xlink:title="calculation: ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest to ProfitLoss" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="OtherComprehensiveIncomeLossNetOfTax" xlink:title="OtherComprehensiveIncomeLossNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="OtherComprehensiveIncomeLossNetOfTax" xlink:title="calculation: ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest to OtherComprehensiveIncomeLossNetOfTax" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:label="OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:title="OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeLossNetOfTax" xlink:to="OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeLossNetOfTax to OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:label="OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:title="OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:to="OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax to OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax" xlink:label="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax" xlink:title="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:to="OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax to OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax" xlink:label="OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax" xlink:title="OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherComprehensiveIncomeLossNetOfTax" xlink:to="OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax" xlink:title="calculation: OtherComprehensiveIncomeLossNetOfTax to OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DividendsPreferredStockCash" xlink:label="DividendsPreferredStockCash" xlink:title="DividendsPreferredStockCash" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="DividendsPreferredStockCash" xlink:title="calculation: ComprehensiveIncomeNetOfTax to DividendsPreferredStockCash" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="NetIncomeLossAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="calculation: ComprehensiveIncomeNetOfTax to NetIncomeLossAttributableToNoncontrollingInterest" use="optional" order="3.0" weight="-1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureGuaranteesDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GuaranteeObligationsMaximumExposure" xlink:label="GuaranteeObligationsMaximumExposure" xlink:title="GuaranteeObligationsMaximumExposure" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_GuaranteeObligationsMaximumExposureExpireLessThanOneYear" xlink:label="GuaranteeObligationsMaximumExposureExpireLessThanOneYear" xlink:title="GuaranteeObligationsMaximumExposureExpireLessThanOneYear" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="GuaranteeObligationsMaximumExposure" xlink:to="GuaranteeObligationsMaximumExposureExpireLessThanOneYear" xlink:title="calculation: GuaranteeObligationsMaximumExposure to GuaranteeObligationsMaximumExposureExpireLessThanOneYear" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_GuaranteeObligationsMaximumExposureExpireWithinOneToThreeYears" xlink:label="GuaranteeObligationsMaximumExposureExpireWithinOneToThreeYears" xlink:title="GuaranteeObligationsMaximumExposureExpireWithinOneToThreeYears" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="GuaranteeObligationsMaximumExposure" xlink:to="GuaranteeObligationsMaximumExposureExpireWithinOneToThreeYears" xlink:title="calculation: GuaranteeObligationsMaximumExposure to GuaranteeObligationsMaximumExposureExpireWithinOneToThreeYears" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_GuaranteeObligationsMaximumExposureExpireOverThreeYears" xlink:label="GuaranteeObligationsMaximumExposureExpireOverThreeYears" xlink:title="GuaranteeObligationsMaximumExposureExpireOverThreeYears" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="GuaranteeObligationsMaximumExposure" xlink:to="GuaranteeObligationsMaximumExposureExpireOverThreeYears" xlink:title="calculation: GuaranteeObligationsMaximumExposure to GuaranteeObligationsMaximumExposureExpireOverThreeYears" use="optional" order="3.0" weight="1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureCommonEquityDetails2">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="NetIncomeLossAvailableToCommonStockholdersBasic" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DividendsPreferredStockCash" xlink:label="DividendsPreferredStockCash" xlink:title="DividendsPreferredStockCash" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="DividendsPreferredStockCash" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to DividendsPreferredStockCash" use="optional" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="NetIncomeLossAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to NetIncomeLossAttributableToNoncontrollingInterest" use="optional" order="4.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to IncomeLossFromDiscontinuedOperationsNetOfTax" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to WeightedAverageNumberOfSharesOutstandingBasic" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:title="IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_IncrementalCommonSharesAttributableToDeferredCompensation" xlink:label="IncrementalCommonSharesAttributableToDeferredCompensation" xlink:title="IncrementalCommonSharesAttributableToDeferredCompensation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToDeferredCompensation" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToDeferredCompensation" use="optional" order="3.0" weight="1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureGoodwillAndOtherIntangibleAssetsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="FiniteLivedIntangibleAssetsNet" xlink:title="FiniteLivedIntangibleAssetsNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="FiniteLivedIntangibleAssetsGross" xlink:title="FiniteLivedIntangibleAssetsGross" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsGross" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsGross" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:title="FiniteLivedIntangibleAssetsAccumulatedAmortization" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="FiniteLivedIntangibleAssetsNet" xlink:to="FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:title="calculation: FiniteLivedIntangibleAssetsNet to FiniteLivedIntangibleAssetsAccumulatedAmortization" order="2.0" weight="-1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureLongTermDebtDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="LongTermDebtCurrent" xlink:title="LongTermDebtCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtCurrent" xlink:title="calculation: LongTermDebt to LongTermDebtCurrent" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="LongTermDebtNoncurrent" xlink:title="LongTermDebtNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LongTermDebtNoncurrent" xlink:title="calculation: LongTermDebt to LongTermDebtNoncurrent" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesOfAssetsHeldForSale" xlink:label="LiabilitiesOfAssetsHeldForSale" xlink:title="LiabilitiesOfAssetsHeldForSale" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="LiabilitiesOfAssetsHeldForSale" xlink:title="calculation: LongTermDebt to LiabilitiesOfAssetsHeldForSale" use="optional" order="3.0" weight="1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureEmployeeBenefitPlansDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:title="DefinedBenefitPlanNetPeriodicBenefitCost" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="DefinedBenefitPlanServiceCost" xlink:title="DefinedBenefitPlanServiceCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanServiceCost" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanServiceCost" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="DefinedBenefitPlanInterestCost" xlink:title="DefinedBenefitPlanInterestCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanInterestCost" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanInterestCost" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:title="DefinedBenefitPlanExpectedReturnOnPlanAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanExpectedReturnOnPlanAssets" use="optional" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" xlink:label="DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" xlink:title="DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" use="optional" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:title="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" use="optional" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="DefinedBenefitPlanAmortizationOfGainsLosses" xlink:title="DefinedBenefitPlanAmortizationOfGainsLosses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="DefinedBenefitPlanAmortizationOfGainsLosses" xlink:title="calculation: DefinedBenefitPlanNetPeriodicBenefitCost to DefinedBenefitPlanAmortizationOfGainsLosses" use="optional" order="6.0" weight="-1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureInvestmentInATCDetails2">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationRevenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss to EquityMethodInvestmentSummarizedFinancialInformationRevenue" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCostOfSales" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationCostOfSales" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationCostOfSales" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationCostOfSales" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss to EquityMethodInvestmentSummarizedFinancialInformationCostOfSales" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_EquityMethodInvestmentSummarizedFinancialInformationOtherExpenses" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationOtherExpenses" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationOtherExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationOtherExpenses" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss to EquityMethodInvestmentSummarizedFinancialInformationOtherExpenses" use="optional" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity to EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity to EquityMethodInvestmentSummarizedFinancialInformationLongTermDebt" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilitiesNoncurrent" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilitiesNoncurrent" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilitiesNoncurrent" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity to EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilitiesNoncurrent" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity to EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital" use="optional" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationAssets" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationAssets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationAssets" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationAssets to EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:label="EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EquityMethodInvestmentSummarizedFinancialInformationAssets" xlink:to="EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:title="calculation: EquityMethodInvestmentSummarizedFinancialInformationAssets to EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" use="optional" order="2.0" weight="1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureLongTermDebtDetailsCalc2">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="DebtInstrumentCarryingAmount" xlink:title="DebtInstrumentCarryingAmount" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="DebtInstrumentCarryingAmount" xlink:title="calculation: LongTermDebt to DebtInstrumentCarryingAmount" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:label="DebtInstrumentUnamortizedDiscountPremiumNet" xlink:title="DebtInstrumentUnamortizedDiscountPremiumNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LongTermDebt" xlink:to="DebtInstrumentUnamortizedDiscountPremiumNet" xlink:title="calculation: LongTermDebt to DebtInstrumentUnamortizedDiscountPremiumNet" use="optional" order="2.0" weight="-1" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://www.integrysgroup.com/role/DisclosureDiscontinuedOperationsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:title="IncomeLossFromDiscontinuedOperationsNetOfTax" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:label="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:title="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:to="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:title="calculation: IncomeLossFromDiscontinuedOperationsNetOfTax to DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:label="DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:title="DisposalGroupIncludingDiscontinuedOperationRevenue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationRevenue" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:label="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:title="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:label="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:title="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationOperatingExpense" use="optional" order="3.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupIncludingDiscontinuedOperationImpairmentLossesOnPropertyPlantAndEquipment" xlink:label="DisposalGroupIncludingDiscontinuedOperationImpairmentLossesOnPropertyPlantAndEquipment" xlink:title="DisposalGroupIncludingDiscontinuedOperationImpairmentLossesOnPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationImpairmentLossesOnPropertyPlantAndEquipment" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationImpairmentLossesOnPropertyPlantAndEquipment" use="optional" order="4.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortizationExpense" xlink:label="DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortizationExpense" xlink:title="DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortizationExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortizationExpense" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortizationExpense" use="optional" order="5.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupIncludingDiscontinuedOperationOtherTaxes" xlink:label="DisposalGroupIncludingDiscontinuedOperationOtherTaxes" xlink:title="DisposalGroupIncludingDiscontinuedOperationOtherTaxes" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationOtherTaxes" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationOtherTaxes" use="optional" order="6.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupIncludingDiscontinuedOperationMiscellaneousIncome" xlink:label="DisposalGroupIncludingDiscontinuedOperationMiscellaneousIncome" xlink:title="DisposalGroupIncludingDiscontinuedOperationMiscellaneousIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationMiscellaneousIncome" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationMiscellaneousIncome" use="optional" order="7.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:label="DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:title="DisposalGroupIncludingDiscontinuedOperationInterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:title="calculation: DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax to DisposalGroupIncludingDiscontinuedOperationInterestExpense" use="optional" order="8.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:label="DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:title="DiscontinuedOperationTaxEffectOfDiscontinuedOperation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:to="DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:title="calculation: IncomeLossFromDiscontinuedOperationsNetOfTax to DiscontinuedOperationTaxEffectOfDiscontinuedOperation" use="optional" order="2.0" weight="-1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:title="AssetsOfDisposalGroupIncludingDiscontinuedOperation" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInventory" xlink:label="DisposalGroupIncludingDiscontinuedOperationInventory" xlink:title="DisposalGroupIncludingDiscontinuedOperationInventory" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupIncludingDiscontinuedOperationInventory" xlink:title="calculation: AssetsOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupIncludingDiscontinuedOperationInventory" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:label="DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:title="DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:title="calculation: AssetsOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet" xlink:label="DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet" xlink:title="DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet" xlink:title="calculation: AssetsOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet" use="optional" order="4.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:label="DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:title="DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:title="calculation: AssetsOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" use="optional" order="5.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupDerivativeInstrumentsAndHedgesAssetsCurrent" xlink:label="DisposalGroupDerivativeInstrumentsAndHedgesAssetsCurrent" xlink:title="DisposalGroupDerivativeInstrumentsAndHedgesAssetsCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupDerivativeInstrumentsAndHedgesAssetsCurrent" xlink:title="calculation: AssetsOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupDerivativeInstrumentsAndHedgesAssetsCurrent" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:title="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesCurrent" xlink:label="DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesCurrent" xlink:title="DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesCurrent" xlink:title="calculation: LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesCurrent" use="optional" order="1.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:label="DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:title="DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:title="calculation: LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" use="optional" order="2.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupIncludingDiscontinuedOperationLongTermDebt" xlink:label="DisposalGroupIncludingDiscontinuedOperationLongTermDebt" xlink:title="DisposalGroupIncludingDiscontinuedOperationLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupIncludingDiscontinuedOperationLongTermDebt" xlink:title="calculation: LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupIncludingDiscontinuedOperationLongTermDebt" use="optional" order="3.0" weight="1" />
    <link:loc xlink:type="locator" xlink:href="teg-20120930.xsd#teg_DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" xlink:label="DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" xlink:title="DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" xlink:title="calculation: LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation to DisposalGroupDerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" use="optional" order="4.0" weight="1" />
  </link:calculationLink>
</link:linkbase>
